Two cars A and B travel from the same point and in the same direction. A is travelling at a speed of `30 k(m)` /` hour` and `B` at a speed of `40 (km) `/` hour`. After 4 hours, what is the distance between the cars? How far the cars would be if they travelled in opposite direction?

A car travelling at a speed of 54 km/hr is brought to rest in 90 s. Find the distance travelled by the car before coming to rest.

A car travels with a speed of 25 m//s for 2 minutes and then with 20 m//s for 1 minute.Calculate the total distance travelled by the car.

Suppose two Cars start together in the same direction from the same place. The first goes with uniform speed of 10km//hr. The second goes at a speed of 8km//hr in the first hour and increases the speed by 1//2km each succeeding hour.Find the distance travelled by the first car in 'n' hours.

Suppose two Cars start together in the same direction from the same place. The first goes with uniform speed of 10km//hr. The second goes at a speed of 8km//hr in the first hour and increases the speed by 1//2km each succeeding hour.Find the distance travelled by the second car in 'n' hours.

Ratnagiri is 360 kilometres from Pavizhamala. Gopika's family travelled in a car at an average speed of 60 (km) / h . They managed only 45 (km) / h during the return trip. What is the average speed of the entire trip?